IMS and Porter Novelli Host Chicago IN On Behalf of Omnicom Media Group IMS Blog Integrated Merchandising Systems, LLC Aug 15 2016 Thanks to all those that could join us for a great event last week!! IMS and Porter Novelli hosted Chicago IN Intern Mixer on behalf of Omnicom Media Group. Lots of great connections were made. Click here for more information: Omnicom Media Group Chicago IN